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{{omit from|MiniZinc|no ability to declare new types at all}} |
{{omit from|MiniZinc|no ability to declare new types at all}} |
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=={{header|11l}}== |
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You can declare a virtual function to not have an implementation by using <code>F.virtual.abstract</code> keyword. A type containing at least one abstract virtual function cannot be instantiated. |
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<lang 11l>T AbstractQueue |
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F.virtual.abstract enqueue(Int item) -> N |
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T PrintQueue(AbstractQueue) |
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F.virtual.assign enqueue(Int item) -> N |
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print(item)</lang> |
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=={{header|AArch64 Assembly}}== |
=={{header|AArch64 Assembly}}== |
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